Domestic appliance



May 13, 1930.

R. 1.. LEE

DOMESTIC APPLIANQE Filed Opt- 23, 1925 Ina-222755 HIEJQZZEPJZE s acertain position.

20 embodiment ofone form of the Patented May 13, 1930 V UNITED STATES c-A QFF CE OHIO, A. CORPORATION OF cDE-LAWARE no vrnsrxc, ArrLIANoEApplication filed October 23, 1923.- SeriaI'No. 670,380. i

I This invention relates, topower driven washing machines of the movabletub type and has among its objects'to permit stopping of the-primefmoveronly when the tub is in In order to carry out this aim of the invention,a washing tub of the movable type "has been provided, andanelectricmotor for driving the tub; A controller has been provicled having manualmeans which 'when i moved to one position causes the electric motor tobe started, and when moved to another position conditions thecontroller, to autos 'matically stop the motor only when'thetub is in acertain position. i

Further" objects and advantages of a the present invention will beapparent from the following description, reference being hadto 'accom anin 'drawin s wherein a referred 23 b -vention is clearly shown. In'thedrawings: v

i Fig. 1 is a fragmentary View in end 'iele' vation of a laundry machineincludingthe- 2'5 present'invention, thetub being shown in one posltlonsw th the power circuit j Fig; 3 is a fragmentary detail' view show-.

' ingathe method of mounting the push spring.

eferring to the drawings, a tub has secured to each end thereof a shaft21' for pivotally mounting the same between two' end frames, oneofwhichisindicated by the numeral 22. Arreturn spring 23 is secured atone end to a stud 24 carried by frame 22,

and the other end to a stud 25 carried by'the tub 20. To shaft 21 issecured a crank'arm 26 which is connected by a link 27 with 'a worm gear28'mounted on a stud 29 supported by frame 22. A motor30 is providedwith brushes 31 and 32,and a motor shaft 33 present inf gear-28:- V v 1'lhemechanism for permitting the motor 30 to be. stopped only when thetub 20Zis'in carrying a worm 34 which mesheswith worm a certainposition, comprises a-gcontroner for I the motor, means for startingthemotor and for -cond1tion1ng the controller to permitv stopping of thetub, and means for per'mit ting the controller to be actuatedautomaticqa'llyuto stop the prime moverfonly whcn the tub is in acertain positionl:v I

. The controller comprises astati'onary con tact40mounted on the frame22, and a mov able contact 41 carried by an arm 42-sec ured toa-lever'43 ivotedon a stud 44 carried by frame22. Sontact 40 isconnected with a suitable source of current bytwire 45, and, contact 41is connected with motor-brush 31 by wire 46 I Motor brush 32 isconnected with the source of current by wire 47. y

The means for starting the motor and for, conditioning the. controllerto permit stop- 7 ping'of the tub, comprises a lever 50 pivoted on stud44 and a push spring 51, one end of which is received by'a socket 52pivotally mounted on lever 50, the other end being RALPH nLnE, orDAYTON, onto; ASSIGNOR *ro Demo-menu COMPANY, or neuron,

receivedby a socket 53 pivotally mounted on lever 43. 4

The means for permitting the controller to be actuatedautomatically tostop the'motor only when the tub isin a certain position, in- 'cludes' asector 55 movable with the tub 20 and provided with a not-ch56, and adetent or finger 57 carried by engage thefnotch 56.

r v Moa le of operation Big; 2, shows the mechanism in normal positionandfwhen it is desired to start the washing "machine, the controller isoperated by moving the lever 50 to the full line position shownin Fig.1.'- When the lever 50 is in this position, the spring 51 hearingagainst the lever 43 will cause lever 43 to be rotated on its pivot 44,thereby closing contacts" 40 lever 43 and adapted to and 41, and liftingthe finger 57 out of the notch 56 in sector 55. Spring 51 will maintothe source of current. I

tain the contacts 40 and 41 closed regardless of the position of thetub20, and the motor circuit will be from the source of current throughwire 45, contact 40, contact 41, wire 46, brush 31, motor 30, brush 32,wire 47 back When itis desired to discontinue operation of the washingmachine, the lever 50 is moved to the dotted line position shown in Fig.1, for conditioning the controller to permit stopping of the .tub. Thespring 51 will I now tend to open the contacts and 41. However, shouldthe t'ubQO be'in 'onebf its tilted positions, such as sliown in Fig,1,"at

, ,the time the lever is moved in an attempt to stop the motor 30, thefinger 57 hearingagainst the edge 61 of sector 55. will prevent thecontacts 40 and 41 from'b'eing separated.

, .Edge 600i sector serves thesame purpose as edge 61 when the tub 20 istilted in an opposite direction. Asthe tub 20 approaches the positionshownin Fig. 2, the spring51 will forcehthe detent or finger 57"in tothenotch5 and thereby automatically actuate 1 position, as shown in Fig.2.

the controller by separating the contact 41 from contact 40 vto stop themotor 30. The fin er n ag e dg s of o h 56 will stop) the tub 20 inSubstantiallyhoriz ontal While the form of embodiment of the inventionas herein disclosed, constitutes a preferred form, it is to-beunderstood that other forms might, be adopted, -allcoming withinthe-scope of the claims which follow.

-What is claimed is as follows:

1. .A washing machine comprising, in com bination, a'movable tub, apower device, connections between the power device and tub V for drivingthe "latter, a controller for the tion.

power device, means for conditioninglthe controller toefi'ect continuousoperation of the tub or to permit stoppingof-the tub, and meansrforpermitting the controller to, be

' actuated automatically to stop-the power deviceionly'when the tub in acertain po s i- 2. washing machine comprising'in combinat on, a movabletub; a power device drivingly connected to the tub; a sector secured tosaid tub; a detent normally engaging the 'nections; between the powerdevice and tubfor. driving the latter; acontroller .for the powerdevice; a notched sector carried on the connections between the powerdevice and the tub; a detent normally engaging the notched sector tolock the tub in' the proper inoperative position; and manually operablemeans including a spring so constructed and arranged that when operatingin one position said spring tends to hold said {detent out of engagementwith the notch of the sector and the power device will start to operatethe tub, and when moved to the other position the spring will exertpressure upon the detent to-cause it to engage with the notch of thesector thereby stopping the power device and locking the tub initsproper'inoperative position.

4. A washing machine comprising, in com-- bination, a movable tub, anelectric motor, connections between the motor and tub for driving thelatter,a'n electric switch for the motor, a spring, a manually operablemember for positioning said spring with respect to said switch wherebyto apply spring pressure in one direction to start the motor and inanother directon for conditioning the switch to cause automatic'stoppingof the motor, and means movable with the tub for preventing operation ofthe springto open the switch except when the tubv is inoa certainposition. 7

, 5. A washing machine comprising, in combination, a movable tub, anelectricmotor, a motor. switch, connections between-the motor and'tubfor'driving the latter, and means for preventing opening of the motorswitch 1 except when the tub isin a certainposition.

6. A washing machine comprising a tub,

supporting means 'for the tub,.an electric motor, driving connectionsbetween said tub and motor for moving said tub, a single manuallyoperable switch for starting and stop ping the motor, and meansassociated with the tub and cooperating with the'switch for preventingsaid switch from stopping'said motorexcept when predeterminedrelationship *isestablished between said tub and, supporting means.

7. A washing machine comprisingja tub, supporting means for the tub,-.anelectric motor, driving connections betweensaidtub and motor. for movingsaidtub, a single manually operable switch for starting and stopping the"motor, and means associated with the tub and cooperating with theswitchfor preventing said switch from stopping said motor except 'whenpredetermined relationship is established between said tub andzsup- P ngmeans. andrfor locln'ngsaidtub inth position atwhich it t d a I V 5' 8.A wa shing machine comprising a tub, a motor drivingly connected to saidtub, a

manually operable switch forstopping said 1 motor by a; snap action in.said switch and 'means for preventing the operation of said snap, actionexcept at one, at least, selected position Qfsaidtuhr r 9. An electricswitch comprising a lever,

an electrical contact arm, a spring'urging said leverand arm apart,saidiever being 'movable to tWo positions to urge said arm, grespectively, into or out of'electrical contact.

'10. An electric switch comprising a lever, an electrical contact arm,ajspring urging said lever and arm apart, said lever being wmovable totwo positions to urge said arm,

nature. 7

RALPH L. LEE.

In testimony whereof I liereto, afiixmy sigi

